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Generic delimitation and relationships in Ebenaceae sensu lato: evidence from six plastid DNA regions
Author(s) -
Duangjai Sutee,
Wallnöfer Bruno,
Samuel Rosabelle,
Munzinger Jérôme,
Chase Mark W.
Publication year - 2006
Publication title -
american journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.218
H-Index - 151
eISSN - 1537-2197
pISSN - 0002-9122
DOI - 10.3732/ajb.93.12.1808
Subject(s) - biology , synapomorphy , monophyly , pantropical , ndhf , sensu , phylogenetic tree , vicariance , evolutionary biology , botany , genus , chloroplast dna , genetics , clade , gene
Phylogenetic relationships of the pantropical family Ebenaceae s.l. were investigated using plastid DNA sequence data from six regions: atpB , matK , ndhF , trnK intron, trnL intron, and trnL ‐ trnF spacer. Sampling included representatives of all currently recognized genera of Ebenaceae, Diospyros , Euclea , and Lissocarpa , and nearly all taxa that were previously recognized at the generic level, e.g., Cargillia , Gunisanthus , Maba , Macreightia , Royena , and Tetraclis . Our results strongly support monophyly of Ebenaceae s.l. and demonstrate that the previous infrafamilar classifications of the family do not circumscribe monophyletic groups. A new infrafamilial classification based on a phylogenetic approach is proposed here and consists of two subfamilies, Lissocarpoideae and Ebenoideae, and four genera, Lissocarpa , Euclea , Royena , and Diospyros . Relationships and potential synapomorphic characters are discussed and summarized. This study supports a western Gondwanan origin of family and indicates that both vicariant and long‐distance dispersal events played an important role in attaining current distributions.